How did the sword come out of its sheath?

Describe the strength of calligraphy. It also means that the other party is in full swing and the situation is tense and explosive. From ancient and modern book reviews.

Example:

Liang Yuanang's Book Review of Ancient and Modern Times in the Southern Dynasties: "Dan Wei's calligraphy shocked Rowen like a tiger."

, Shi "Bing Tuilu" Volume 2: "[Yuan Ang Book Review] Liang Jiashu, like a tiger shock, is tense."

Ming? Song Lian? "Postscript: Rebuilding the Monument on an auspicious day": "The brushwork is magnificent and has tension."

Qing Yang Maojian's "Chen Jing Miscellaneous Notes Ding Sun": "I occasionally put pen to paper, learn painting, separated by wind and rain, but also very arrogant."

Qing? Chen Tinghua? Bai Yuzhai's Ci Volume 1: "Jia Xuan's Ci is too focused, such as Broken Array and Hidden Water Dragon, and it is inevitable to be nervous ... The style is profound and profound, so there is no need to be nervous. It is a stunt."

Lu Xun's "Three Essays of Jiejieting in the Literary World": "What have you achieved?"

Lao She's Four Generations under a Family IV: "He is still very natural and does not show his arrogance."

Levin's History of the Qing Dynasty (Volume II): French warships frequently visited the Minjiang Estuary, but the negotiations were tense. It seems that Fuzhou Shipping Bureau can't escape the fire of French warships.

Idiom usage:

Combined type; As predicate, attribute and adverbial; Describe the conflict between the two sides, mostly used between nervous individuals or groups of countries.